1.3.1 compression

Question 1

what is compression

Answer 1

reudcing file size

Question 2

why would u use compression

Answer 2

to reduce storage space wasted
to improve download speed

Question 3

what is lossless compression

Answer 3

temporarily removing data to reduce filesize but it can be recoverd

Question 4

what is lossy compression

Answer 4

when you remove data to reduce the filesize

Question 5

what is an example lossless compression

Answer 5

run length coding , dictionary coding

Question 6

what is an example of lossy compression

Answer 6

reducing the quality on audio or a photo .

Question 7

what is dictionary coding

Answer 7

using an index to compress larger words

Question 8

what is run lenght encoding

Answer 8

makes use of recurring data and simplifys it
00000 = 5w if 0 = white